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EngPF
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Homework Statement
Hello there everybody! I'm reading a Linear Algebra textbook, specifically on LTV systems solutions.
I'm trying to redo this example from the book:
Homework Equations
But I couldn't understand the passage:
The Attempt at a Solution
I mean. x1(0) = 1 and x2(0) = 0? I don't know from where that came from. And then x(t) = [1 0.5t^2]^T ?
I can see from the x1(t) = x1(0) and x2(t) = (1/2)(t^2)x1(0) + x2(0) that
x(t) = [1 0.5t^2]^T [x1(0) x2(0)] <= This I can relate!
But the second one where x(t) = [ 1 2 ]^T I can't understand.
I think it might have been arbitrarily choosen values? Either that or I'm missing some basic concept here. I've tried to get back some pages/chapters but could find the answer for that. Should I study the first chapters all again? (yeah probably I should! =/ )
Anyway, could someone help me to understand this?
Thank you very much!
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